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Dive into the research topics where Mustafa Yaylaci is active.

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Featured researches published by Mustafa Yaylaci.


Breast Cancer Research | 2003

Breast cancer in association with thyroid disorders

Orhan Türken; Yavuz Narin; Sezai DemIrbas; M Emin Onde; Ozkan Sayan; E. Gokhan Kandemir; Mustafa Yaylaci; Ahmet Öztürk

BackgroundThe relationship between breast cancer and thyroid diseases is controversial. Discrepant results have been reported in the literature. The incidences of autoimmune and nonautoimmune thyroid diseases were investigated in patients with breast cancer and age-matched control individuals without breast or thyroid disease.MethodsClinical and ultrasound evaluation of thyroid gland, determination of serum thyroid hormone and antibody levels, and fine-needle aspiration of thyroid gland were performed in 150 breast cancer patients and 100 control individuals.ResultsThe mean values for anti-thyroid peroxidase antibodies were significantly higher in breast cancer patients than in control individuals (P = 0.030). The incidences of autoimmune and nonautoimmune thyroid diseases were higher in breast cancer patients than in control individuals (38% versus 17%, P = 0.001; 26% versus 9%, P = 0.001, respectively).ConclusionOur results indicate an increased prevalence of autoimmune and nonautoimmune thyroid diseases in breast cancer patients.


Onkologie | 2009

Metastasis of Lobular Breast Carcinoma to the Uterus in a Patient under Anastrozole Therapy

Basak Oven Ustaalioglu; Ahmet Bilici; Mesut Seker; Tarik Salman; Mahmut Gumus; Nagehan Ozdemir Barisik; Taflan Salepci; Mustafa Yaylaci

Background: Metastasis of extragenital neoplasms to the uterus are rarely encountered, and usually occur as a manifestation of advanced disease. Lobular carcinoma is the most common type of breast cancer that metastasizes to the uterus. Case Report: We report on a 56-yearold woman who 3 years previously was diagnosed with invasive lobular carcinoma of the breast and was treated with surgery followed by chemotherapy and radiotherapy. While the patient was on adjuvant anastrozole therapy for 2 years, she complained of vaginal bleeding. Because of endometrial thickening and a uterine leiomyoma detected during abdominal ultrasonographic ex-amination, a total hysterectomy with bilateral salpingooophorectomy was performed. Histopathologic examination of the specimens revealed carcinoma infiltration of the myometrium, endometrium, cervix, uterine tube, and left ovary. Immunohistochemical staining of tumoral cells with pancytokeratin and gross cystic disease fluid protein (GCDFP-15) proved the diagnosis of metastatic lobular breast carcinoma to the uterus. Conclusion: To our knowledge, this is the second case of lobular breast carcinoma metastasized to the uterus under anastrozole therapy. In women with lobular breast cancer under adjuvant anastrozole therapy, who present with vaginal bleeding, uterine metastasis of lobular carcinoma should be considered in the differential diagnosis.


Advances in Therapy | 2008

Peripheral blood gamma-delta T cells in advanced-stage cancer patients

Bülent Karagöz; Orhan Türken; E. Gokhan Kandemir; Ahmet Ozturk; Mahmut Gumus; Mustafa Yaylaci

Gamma-delta T (γδ T) cells form a subgroup which has been reported to play a role in both natural and acquired immunity. Their levels have been found to increase in some tumour tissues. The aim of this study was to investigate the ratio of γδ T cells to all T cells in the peripheral blood of advanced-stage cancer patients; the level of γδ T cells expressing the Vδ2-T-cell receptor (TCR) chain; NKG2D receptor expression; and apoptotic (Annexin-V) γδ T-cell levels. Twenty patients with advanced-stage cancer and 13 healthy controls were included. No statistical differences were found between control and patient groups in terms of the γδ T/total T-cell ratio (P=0.53), the Vγ2-TCR expressing γδ T-cell ratio (P=0.19) or the Annexin-V ratio (P=0.48). However, NKG2D expression in γδ T cells was significantly different between the control and patient groups (P=0.014). In summary it was shown that the levels of NKG2D receptors, which are responsible for the cytolytic effect of γδ T cells, were lower in cancer patients than in healthy adults. However, no significant differences were observed in the other parameters studied between groups.


Leukemia & Lymphoma | 2002

Acute Myeloblastic Leukemia Achieving Complete Remission with Amifostine Alone

Ahmet Ozturk; Orhan B; Orhan Türken; Durmus Etiz; Mustafa Yaylaci; Necdet Üskent

Amifostine, a phosphorylated thiol-amine, is known as a cytoprotective agent especially for cisplatin containing chemotherapies. Apart from the cytoprotective role, Amifostine could also be used in the treatment of hematologic malignancies such as myelodysplastic syndrome (MDS) and acute myeloblastic leukemia (AML), as a treatment option or for potentiating the effects of cytotoxic agents. We tried to use Amifostine in a patient with AML, which did not respond to conventional cytotoxic chemotherapy and aimed to publish the results. The patient was a 77-year-old male patient, he was diagnosed as AML by peripheral blood smear and bone marrow aspiration. Treatment commenced with low dose cytosine arabinoside (Ara-C) but the therapy should have ceased due to patient intolerance. The patient refused further therapy and he was offered to have Amifostine treatment. Amifostine was administered 200 mg/m 2 three times a week, with ciprofloxacin, pentoxifyllin and dexamethasone. Dramatic response was obtained after 8 weeks of administration. Blast rate was reduced from 35 to 7% in bone marrow aspiration; pancytopenia was restored to normal levels. This remission was maintained through 8 more weeks. Amifostine treatment was restarted after he relapsed but this time he did not respond to the treatment and died of gastrointestinal bleeding on the 8th week of treatment.


Onkologie | 2010

Bilateral conjunctival MALT lymphoma mimicking chronic conjunctivitis.

Mesut Seker; Burak Ozdemir; Ahmet Bilici; Bala Basak Oven Ustaalioglu; Berkant Sonmez; Burcak Yilmaz; Ekrem Kurnaz; Mahmut Gumus; Mustafa Yaylaci

Background: The diagnosis of conjunctival lymphoid tu-mors is straightforward when they present with a characteristic salmon-pink, pebbly, multinodular appearance. However, rarely a diffuse clinical presentation is encountered, and this may mimic chronic conjunctivitis of other etiologies. Case Report: A 60-year-old man was referred to our clinic with bilateral conjunctival masses in May 2005. With the assumption of chlamydial conjunctivitis, without microbiological or histopathological evidence, tetracycline ointment and oral doxycycline 100 mg twice daily were prescribed. Although a partial response was achieved, 2 months after the treatment, the patient’s complaints returned. On second referral to our clinic in March 2006, the patient was re-evaluated. He presented with bilateral conjunctival masses resembling conjunctival lymphoma, and a bilateral diagnostic biopsy was performed. Histopathological evaluation of the biopsy specimens revealed mucosa-associated lymphoid tissue (MALT) lymphoma. The patient received CVP chemotherapy (cyclophosphamide, vincristine, prednisolone). After 6 courses of chemotherapy, he achieved partial remission in both eyes. Currently, 28 months after CVP, sustained remission is obtained. Conclusions: In these cases, a high index of suspicion is required if one is to avoid a delay in diagnosis, and the importance of correct early diagnosis is obvious.


Acta Haematologica | 2003

Thrombotic Thrombocytopenic Purpura Associated with Ticlopidine

Orhan Türken; Ahmet Öztürk; Orhan B; Gökhan Kandemir; Mustafa Yaylaci

Thrombotic thrombocytopenic purpura is a syndrome characterized by hemolytic anemia, thrombocytopenia, neurological symptoms, fever and renal dysfunction. Although the syndrome is usually associated with various infections, vasculitis and pregnancy, rarely can it be associated with certain neoplasms and drugs such as ticlopidine. A 63-year-old woman, who had undergone coronary angioplasty and had been started on ticlopidine, was admitted to our clinic with a history of vomiting, fatigue, hematuria and deterioration in her cognitive abilities. Thrombotic thrombocytopenic purpura was diagnosed on the basis of neurological changes, an increase in LDH, urea, creatinine, indirect bilirubin levels, anemia and peripheral smear findings. Treatment was initiated with daily plasmapheresis and complete clinical and laboratory recovery developed. The patient was discharged after 14 days.


Clinical Lung Cancer | 2009

Myasthenia Gravis and Autoimmune Addison Disease in a Patient With Thymoma

Mesut Seker; Hulya Gozu; Bala Basak Oven Ustaalioglu; Berkant Sonmez; Fatih Yavuz Erkal; Mihriban Kocak; Nagehan Ozdemir Barisik; Ekrem Orbay; Mehmet Sargin; Haluk Sargin; Ülkü Türk Börü; Mustafa Yaylaci

The association of thymoma with myasthenia gravis has been well documented. However, the relationship between these two syndromes and Addison disease are very rarely encountered in clinical practice. We report on a 32-year-old man who underwent a resection for thymoma 48 months ago. The diagnosis of Addison disease was made followed by a diagnosis of myasthenia gravis on the basis of a high titer of acetylcholine receptor levels. The treatment of oral prednisolone 7.5 mg/day and oral prostigmine 180 mg/day was initiated. His symptoms and physical signs were improved after this treatment. To our knowledge, this is the fourth reported case of thymoma synchronously associated with myasthenia gravis and Addison disease.


Acta Cytologica | 1996

Chemotherapy- and radiotherapy-induced cytologic alterations in the sputum of patients with inoperable lung carcinoma. Role in follow-up.

İbrahim Öztek; Huseyin Baloglu; Necdet Üskent; Zafer Kartaloglu; Ergün Uçmakli; Recep Aydilek; Osman Dorkip; Mustafa Yaylaci; Melih Özel

OBJECTIVE To define the light microscopic cytologic changes due to chemotherapy (CT) and/or radiotherapy (RT); to evaluate the differentiation of those changes according to treatment; to find out whether a relation exists between treatment type and its duration and the cytologic findings; and to determine the role of sputum cytology in evaluating efficacy of treatment and follow-up in patients with inoperable lung cancer of various histology. STUDY DESIGN A total of 1,605 periodic sputum samples from 80 cases of lung cancer obtained during treatment and follow-up were prospectively examined cytologically. The relationship of treatment type and duration to qualitative and semiquantitative data and the definability of the response to treatment as well as the relationship of progression-free survival (PFS) and total survival (TS) rates with cytologic data were evaluated. RESULTS The majority of therapy-induced cellular changes were in the nucleus and were directly related to the duration of treatment. An increase in minimally affected tumor cells, tumor cells that lost their pathologic features and necrotic cell debris were good indicators of therapeutic efficacy. Cytologic changes did not reflect PFS and TS rates. CONCLUSION Although light microscopic cytologic changes cannot be attributed objectively to either RT or CT, therapeutic efficacy is shown in follow-up sputum cytology, which can be used in monitoring and planning additional therapy or other therapeutic options in lung cancer patients.


The Journal of Breast Health | 2016

Turkish Ministry of Health, 2nd Turkish Medical General Assembly Clinical Oncology Study Group Report

Vahit Ozmen; Nergiz Dagoglu; Ismet Dede; Adem Akcakaya; Mustafa Kerem; Fatih Goksel; Enver Ozgur; Emel Baskan; Mustafa Yaylaci; Adil Ceydeli; Meltem Baykara; Huriye Senay Kiziltan; Seref Komurcu; Mahmut Gumus; H. Mehmet Turk; Recep Demirhan; Ali Akgun; Naim Kadoglou; Emre Yatman; Cem Cüneyt Elbi; Seza Gulec; Atilla Soran; Ahmet Özet; Fahrettin Kelestimur

OBJECTIVE There is an increase in the incidence of cancer, and consequently in mortality rates, both in the world and in Turkey. The increase in the incidence and mortality rate of cancer are more prominent in our country as well as in other developing countries. The aim of this workshop was to determine the current status on prevention, screening, early diagnosis and treatment of cancer in our country, to identify related shortcomings, specify solutions and to share these with health system operators, and to aid in implementation of these systems. Developments on palliative care were also evaluated. MATERIALS AND METHODS The current situation in the practice of clinical oncology, related drawbacks, problems encountered during multidisciplinary approach and their solutions were discussed under several sub-headings during a 3-day meeting organized by the Turkish Ministry of Health (Türkiye Cumhuriyeti Sağlık Bakanlığı-TCSB) with participation of 16 scientists from Turkey and 6 from abroad, and the conclusions were reported. RESULTS It is expected that the newly established Turkish Health Institutes Association (Türkiye Sağlık Enstitüleri Başkanlığı-TÜSEB) and the National Cancer Institute (Ulusal Kanser Enstitüsü) will provide a new framework in the field of oncology. The current positive findings include the increase in the number of scientists who carry out successful trials in oncology both in Turkey and abroad, the implementation of the national cancer registry program by the Cancer Control Department and the breast cancer registry program by the Turkish Federation of Breast Diseases Societies (Türkiye Meme Hastalıkları Dernekleri Federasyonu-TMHDF), and introduction of Cancer Early Diagnosis, Screening, and Training Centers (Kanser Erken Tanı, Tarama ve Eğitim Merkezi-KETEM) for the application of community-based cancer screening programs. In addition to these, obvious shortcomings related to education, implementation, management and research issues were also determined, and policy and project proposals to address these issues were presented. Collaboration with relevant organizations in the implementation of these studies was supported. CONCLUSION Both the incidence and mortality rates of cancer are increasing in Turkey. The widespread deficiencies in population-based screening and in effective treatment lead to an increase in delay in diagnosis and mortality. Despite improvements in data recording, screening and treatment over the last 10 years, extensive, organized, population-based screening programs and fully equipped early diagnosis and treatment centers are required. Enhancement of basic cancer epidemiologic, translational, genetic and molecular research studies is essential in our country. Improvements on pain treatment and palliative care of patients with chronic and terminal cancer are also required.


Onkologie | 2010

Deutsche Osteoonkologische Gesellschaft gegründet

Volker R. Jacobs; Peter Mallmann; Mesut Seker; Burak Ozdemir; Ahmet Bilici; Bala Basak Oven Ustaalioglu; Berkant Sonmez; Burcak Yilmaz; Ekrem Kurnaz; Mahmut Gumus; Mustafa Yaylaci; George Bozas; Anu Roy; Vani Ramasamy; Anthony Maraveyas; Michael Halank; Christiane Jakob; Martin Kolditz; Gerd Hoeffken; Utz Kappert; Gerhard Ehninger; Matthias Weise; Christos Lafaras; Eudokia Mandala; Dimitrios Platogiannis; Athanasios N. Saratzis; Nikolaos Barbetakis; Panagiotis P. Paraskevopoulos; George Ilonidis; Theodoros Bischiniotis

zudem Dr. Holger Uhthoff, Speyer (Schatzmeister) und Prof. Dr. M. Heinrich Seegenschmiedt, Hamburg (Schriftführer) an. Zu Beisitzern wurden PD Dr. Christian Eberhardt, Hanau, Prof. Dr. Tanja Fehm, Tübingen, Prof. Dr. Franz Jakob, Würzburg, und PD Dr. Florian Schütz, Heidelberg berufen. Die Gesellschaft umfasst derzeit 45 Gründungsmitglieder. Mitglied werden kann jeder, der sich wissenschaftlich mit dem Gebiet der Osteoonkologie beschäftigt. Die Gesellschaft wird als Verein eingetragen und die Gemeinnützigkeit wird beantragt.

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Mahmut Gumus

Istanbul Medeniyet University

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Orhan Türken

Military Medical Academy

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Tarik Salman

Dokuz Eylül University

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Ahmet Ozturk

Military Medical Academy

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